images in a colored bex (with !), possible? #10

I would like, in the "beyond" part of each course, sometime realize a test. Like in :

If the user decide to do the test, then we give more informations, and in particular images, to explain more, or to show the result if the solution is graphical. So, the image should be displayed only inside such thing :

the image could be here

or here too

Will it be possible?
If not, we just have to know, to organize the tests in others ways :)

I don't understand ; we need to review this together. Call me! I saw you updated files!